package PackageClass;

import java.util.Scanner;

public class IntegerDemo4 {
    public static void main(String[] args) {

        //键盘录入
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入:");
        String Line = sc.nextLine();
        System.out.println(Line);
        double v = Double.parseDouble(Line);
        System.out.println(v);


    }
}
